Hello. I Am A 25 Year Old Female. During The

Hello. I am a 25 year old female. During the past month I have been experiencing what seems like a UTI symptom. I don't have any burning but every now and then I feel like I need to use the bathroom but nothing comes out. I've had UTIs before and this is the only symptom I have experienced. However, in the past it's been very constant and not on and off like what I'm experiencing now. I went to get a dipstick test done and it came back negative. What could it be?